Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The snow crate (Rust Noise Protocol implementation) before 0.9.5 has a logic bug where unauthenticated payloads can still increment the nonce in its internal state. An attacker who can inject packets into the channel carrying the Noise session could use garbage data to cause a denial of service and prevent message delivery. Only users of the stateful TransportState are affected, not StatelessTransportState. Upgrade to snow 0.9.5.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 3.1 | Low | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L | CNA (mitre) |
- CISA KEV Not listed.
- EPSS 0.0047, the 40th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:24 UTC First seen by agentprime
- 31 Oct 2026, 14:24 UTC Confirmed by OSV